C1251 2016 GMC Sierra Code - Lateral Acceleration Sensor Performance
Quick Answer
The C1251 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates an issue with the lateral acceleration sensor's performance. Common causes include Faulty lateral acceleration sensor, Loose or damaged wiring/connectors, Corrosion or debris affecting sensor operation. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- C1251 2016 GMC Sierra indicates Lateral Acceleration Sensor Performance.
- Common causes
- Common causes include Faulty lateral acceleration sensor, Loose or damaged wiring/connectors, Corrosion or debris affecting sensor operation.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code C1251 2016 GMC Sierra Description
The C1251 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates an issue with the lateral acceleration sensor's performance. This sensor is responsible for measuring the vehicle's lateral acceleration, which is the force experienced when a vehicle corners or changes lanes. The lateral acceleration sensor helps the vehicle's stability control system to monitor and adjust the vehicle's handling and stability during driving maneuvers. When this sensor is not functioning correctly, it can lead to compromised handling and stability, potentially affecting the vehicle's overall performance and safety.
Common Causes of C1251 2016 GMC Sierra
- Faulty lateral acceleration sensor
- Loose or damaged wiring/connectors
- Corrosion or debris affecting sensor operation
- Electronic control unit (ECU) software issues
- Impact or physical damage to the sensor
Symptoms of C1251 2016 GMC Sierra
- ABS/Traction control warning lights illuminated on the dashboard
- Loss of stability control during cornering or lane changes
- Abnormal steering behavior or sensitivity
- Uneven tire wear
- Difficulty maintaining control on slippery or uneven road surfaces
How to Fix C1251 2016 GMC Sierra
- Diagnose the issue using a scan tool to confirm the lateral acceleration sensor fault
- Inspect wiring and connectors for damage or looseness, repairing or replacing as necessary
- Clean sensor area to remove any corrosion or debris that may be affecting sensor operation
- Reset ECU and perform calibration of the lateral acceleration sensor
- If the sensor is faulty, replace it with a new one and recalibrate the system
Cost to Fix C1251 2016 GMC Sierra
The cost of repairing a lateral acceleration sensor performance issue can vary depending on the specific cause of the problem and the cost of parts and labor. Generally, the cost of replacing a lateral acceleration sensor can range from $150 to $400, with additional costs for diagnostic time, calibration, and any other necessary repairs. It is recommended to consult with a trusted mechanic or auto repair shop for a more accurate estimate based on your vehicle's make and model. Labor rates typically range from $80 to $150 per hour, but may vary based on location and shop rates.
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Frequently Asked Questions about C1251 2016 GMC Sierra Code
1. What does the OBDII code C1251 mean on a 2016 GMC Sierra?
C1251 indicates a Lateral Acceleration Sensor Performance issue, meaning the sensor is not providing accurate data to the vehicle's stability control system.
2. What are the common symptoms of code C1251 in a 2016 GMC Sierra?
Symptoms may include the ABS or traction control warning light turning on, reduced stability control performance, or difficulty maintaining control during sharp turns.
3. What causes C1251 to appear on a 2016 GMC Sierra?
Common causes include a faulty lateral acceleration sensor, damaged wiring or connectors, or calibration issues with the stability control system.
4. Can I still drive my 2016 GMC Sierra with the C1251 code?
Yes, you can drive the vehicle, but it’s not recommended to ignore the issue as stability control and traction systems may not function properly, increasing the risk of losing control in certain driving conditions.
5. How do I diagnose the C1251 code on a 2016 GMC Sierra?
Start by scanning the vehicle with an OBDII scanner, inspecting the lateral acceleration sensor and its wiring for damage, and checking for loose or corroded connectors.
6. Where is the lateral acceleration sensor located in a 2016 GMC Sierra?
The lateral acceleration sensor is typically located under the center console or near the floorboard, depending on the vehicle's configuration.
7. How can I fix the C1251 code on my 2016 GMC Sierra?
Common fixes include replacing the lateral acceleration sensor, repairing or replacing damaged wiring, and recalibrating the stability control system using a scan tool.
8. How much does it cost to repair the C1251 code on a 2016 GMC Sierra?
The cost can range from $200 to $500 depending on whether the lateral acceleration sensor needs replacement or if additional wiring repairs are required.
9. Can a dead battery cause the C1251 code in a 2016 GMC Sierra?
A weak or dead battery can cause electrical issues that may trigger the C1251 code, so it’s worth checking the battery and charging system during diagnosis.
10. Do I need to recalibrate the stability control system after fixing the C1251 code on my 2016 GMC Sierra?
Yes, recalibration is often necessary after replacing the lateral acceleration sensor to ensure the stability control system operates correctly.
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